. 2017 Aug 16;14(4):3447–3454. doi: 10.3892/etm.2017.4932
Copyright: © Wu et al.
This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.